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2014 IEEE International Conference on Vehicular Electronics and Safety最新文献

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Designing vehicle tracking system - an open source approach 设计车辆跟踪系统-一个开源的方法
Pub Date : 2014-12-01 DOI: 10.1109/ICVES.2014.7063737
T. Bojan, Umamaheswaran Raman Kumar, Viswanathan Manihatty Bojan
Vehicle tracking system has been extensively used for fleet management, asset tracking, surveillance, stolen vehicle recovery and many more. Advances in modern technologies like ubiquitous computing, Internet of Things (IoT) coupled with the availability of the economical hardware building blocks is creating a new wave of vehicular tracking systems. In this work we present VERTIGUO (VEhiculaR TrackInG Using Opensource approach), a GPS,GSM and GPRS technology based vehicular tracking system, that is accurate, robust, flexible, economical and feature rich. Unlike the traditional COTS (Commercial Of The Shelf) vehicular tracking system, that are closed and confined to smartphone and PC's, our vehicular tracking system infrastructure is open sourced and is available for the research fraternity to test, experiment and add more features. The hardware (HW) is developed by leveraging our expertize on open source HW platform. The software (SW) infrastructure can track the vehicles through a web interface on smartphones and PC or through an SMS on normal GSM based feature phones. This application will work for all mobile phones provided they are on a GSM network. In this paper we describe our system architecture, prototype and results obtained in our field trials.
车辆跟踪系统已广泛应用于车队管理、资产跟踪、监控、被盗车辆追回等领域。现代技术的进步,如无处不在的计算、物联网(IoT),加上经济硬件构建模块的可用性,正在创造一波新的车辆跟踪系统。本文提出了一种基于GPS、GSM和GPRS技术的车辆跟踪系统VERTIGUO (VEhiculaR TrackInG Using Opensource approach),该系统具有准确、鲁棒、灵活、经济、功能丰富等特点。与传统的COTS(商用货架)车辆跟踪系统不同,我们的车辆跟踪系统基础设施是开源的,可供研究人员测试、实验和添加更多功能。硬件(HW)是利用我们在开源硬件平台上的专业知识开发的。软件(SW)基础设施可以通过智能手机和个人电脑上的web界面或基于普通GSM的功能手机上的短信来跟踪车辆。此应用程序将适用于所有移动电话,只要它们是在GSM网络上。本文介绍了系统的结构、原型和现场试验的结果。
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引用次数: 26
Automatic measurement of rail line expansion joint gaps 铁路线路伸缩缝间隙的自动测量
Pub Date : 2014-12-01 DOI: 10.1109/ICVES.2014.7063720
S. Islam, R. A. Khan, Rubel Biswas
Expansion joint gaps are the gaps which are deliberately left between the rail ends to allow for expansion of the rails in hot weather. Over gapping of these end to end gaps often result in derailments. Therefore in order to prevent dangerous situations and ensuring safety rail lines are periodically inspected. Rail inspection in many countries especially in third world countries, like Bangladesh, is performed manually by a trained human operator who periodically walks along the track searching for visual anomalies. Such manual inspection is lengthy, laborious and subjective. This paper presents a machine vision-based technique to automatically measure the length of rail line expansion joint gaps using morphological processing. This approach has confirmed to successfully detect scenarios of different condition with an accuracy of 89%, thus proving its robustness.
伸缩缝间隙是故意在钢轨两端之间留下的间隙,以便在炎热的天气下使钢轨膨胀。这些端到端间隙过大常常导致脱轨。因此为了防止危险情况的发生,确保铁路线路的安全,要定期进行检查。在许多国家,特别是在第三世界国家,如孟加拉国,铁路检查是由受过训练的操作员手动进行的,他们定期沿着轨道行走,寻找视觉异常。这种人工检查是冗长、费力和主观的。本文提出了一种基于机器视觉的基于形态处理的钢轨伸缩节间隙长度自动测量技术。该方法已被证实可以成功地检测不同条件下的场景,准确率达到89%,从而证明了其鲁棒性。
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引用次数: 0
A study on high-speed recognition of hybrid track circuit 混合轨道电路的高速识别研究
Pub Date : 2014-12-01 DOI: 10.1109/ICVES.2014.7063708
Changlong Li, Seahwa Oh, Dongin Yang, Hohung Jung, Keyseo Lee
Track circuit in a railway signaling system can detect a train, while speed code and other kinds of information are interchanged through a track circuit. Rail can be used as a part of a track circuit. In an audio frequency track circuit, speedup and comfortable ride are offered. Some kinds of LRT do not have track circuits and do not use a fixed block system, however. Instead of a fixed track circuit, they use a virtual track circuit using software techniques. In this paper, a hybrid track circuit (HTC) is proposed using RFID antenna and reader on the cab and RFID tag on the sleeper. Also HTC is composed of software on the cab computer. Cab computers are a hot standby system for reliability and safety. 900MHz frequency is used and Eurobalise specification for housing is applied. Meanwhile, a simulator for testing a HTC was made. The maximum speed of the simulator was 500km/h. The proposed HTC can detect tags correctly for 500km/h high speed and constitutes an HTC well. The field testing of HTC was carried out at the Daebul test line. It is showed a potential for 80km/h. Soon a highspeed line test will be carried out at the Osong test line. HTC combined with tachometer can be used for ATO, ATP, and ATC application. Simple and low-cost HTC can be a key part of a railway signalling system.
铁路信号系统中的轨道电路可以检测列车,同时通过轨道电路交换速度码和其他各种信息。钢轨可用作轨道电路的一部分。在音频轨道电路中,提供了加速和舒适的驾驶。然而,有些类型的轻轨没有轨道电路,也不使用固定的街区系统。他们使用的不是固定的轨道电路,而是使用软件技术的虚拟轨道电路。本文提出了一种混合轨道电路(HTC),在驾驶室上使用RFID天线和读取器,在轨枕上使用RFID标签。另外HTC是由驾驶室电脑上的软件组成的。驾驶室计算机是一种具有可靠性和安全性的热备用系统。使用900MHz频率,外壳采用Eurobalise规格。同时,还制作了一个测试HTC的模拟器。模拟器的最高速度为500km/h。所提出的HTC可以在500km/h的高速下正确检测标签,构成了一个良好的HTC。HTC的现场测试是在大田测试线上进行的。它显示了80公里/小时的潜力。很快,将在五松测试线上进行高速线路测试。HTC结合转速计可用于ATO, ATP和ATC应用。简单和低成本的HTC可以成为铁路信号系统的关键部分。
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引用次数: 0
Safety system of an electric vehicle for formula racing 方程式赛车电动车辆的安全系统
Pub Date : 2014-12-01 DOI: 10.1109/ICVES.2014.7063722
G. Sruthi, R. Vibhute, U. Karmarkar, S. Chandra, Sudharshun Mukundan Iyengar
Developing an Electric Formula car has its own challenges associated with it, perhaps what convolutes the case is the proper safety measures that needs to be in place to ensure the well being of the driver. A formula car must perform well as to achieve extremely high speed in a really small time frame, and also keep a tab on proper working of all the components which otherwise could be catastrophic. While Mechanical parts have their own safety standards and measures in place, electrical parts and safety designing should follow the stringent rules of FSAE. The paper discusses an innovative way in which safety systems of a highly safe Formula electric vehicle was achieved by Analog circuits designing and Electronic Control Unit (ECU) programming, taking into consideration different possibilities and at the same time conforming to the uncompromising rules of FSAE.
开发电动方程式赛车有其自身的挑战,也许最令人费解的是需要适当的安全措施,以确保司机的健康。一辆方程式赛车必须在非常短的时间内达到极高的速度,同时还要注意所有部件的正常工作,否则可能会造成灾难性的后果。虽然机械部件有自己的安全标准和措施,但电气部件和安全设计应遵循FSAE的严格规则。通过模拟电路设计和电控单元(ECU)编程,在考虑各种可能性的同时,又符合FSAE的不妥协规则,探讨了一种实现高安全性电动方程式汽车安全系统的创新方法。
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引用次数: 7
A safety concept for camera based ADAS based on multicore MCU 一种基于多核单片机的摄像头ADAS安全概念
Pub Date : 2014-12-01 DOI: 10.1109/ICVES.2014.7063714
R. Tan
With the introduction of camera based ADAS systems; there is a need to consider the systems design in terms of functional safety. This is especially so in cases where system image identification results in decision to control the vehicle like in autonomous braking. Firstly, a review of functional safety is followed by a safety analysis of a camera based forward collision warning system. Potential hazards and safety goals will be described. A functional safety concept of the ECU based on multi core MCU is introduced based on image data flow from camera sensor to MCU. Safety mechanisms are introduced at each stage ensuring the correct processed image and decision based on that image. An actual MCU based design that implements these safety mechanisms is also described.
随着基于摄像头的ADAS系统的引入;有必要从功能安全的角度考虑系统设计。在系统图像识别导致控制车辆的决定(如自动制动)的情况下尤其如此。首先对功能安全性进行了综述,然后对基于摄像头的前向碰撞预警系统进行了安全性分析。潜在的危险和安全目标将被描述。介绍了一种基于多核单片机的ECU的功能安全概念,该概念基于从摄像头传感器到单片机的图像数据流。在每个阶段引入安全机制,确保正确处理的图像和基于该图像的决策。本文还描述了一个实际的基于单片机的安全机制实现设计。
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引用次数: 2
Face pose estimation for driver distraction monitoring by automatic clustered linear discriminant analysis 基于自动聚类线性判别分析的驾驶员分心监测人脸姿态估计
Pub Date : 2014-12-01 DOI: 10.1109/ICVES.2014.7063731
V. HariC., P. Sankaran
Smooth varying data is hard to classify/divide to separate classes since there is small separation. Large number of close and adjacent poses create smooth varying manifolds. Manual class formation by selecting different data points from entire database into different training classes will affect the error rate in smooth varying data classification. This paper proposes classification of smooth varying data based on clustering and discriminant analysis. The clustering process results in different clusters which can be used for classification based on discriminant analysis. The automated class formation based on the data points in the manifold reduces effort of manual clustering and it gives very comparable results. This pose estimation can be used as a measure of driver distraction monitoring.
平滑变化的数据很难分类/划分为独立的类,因为它们之间的分离很小。大量的接近和相邻的姿势创建光滑的变化流形。通过从整个数据库中选择不同的数据点进行不同的训练类,手工形成类会影响平滑变数据分类的错误率。本文提出了基于聚类和判别分析的光滑变化数据分类方法。聚类过程产生不同的聚类,这些聚类可以用于基于判别分析的分类。基于流形中数据点的自动类形成减少了人工聚类的工作量,并给出了非常可比的结果。这种姿态估计可以作为驾驶员分心监测的一种措施。
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引用次数: 3
Autonomous navigation of generic Quadrocopter with minimum time trajectory planning and control 通用四旋翼飞行器自主导航的最短时间轨迹规划与控制
Pub Date : 2014-12-01 DOI: 10.1109/ICVES.2014.7063726
K. Bipin, Vishakh Duggal, K. Krishna
The challenges in generating minimum time trajectory and control for generic quadrocopter flying through sophisticated and unknown environment are explored in this paper. The proposed method uses convex programming technique to optimize polynomial splines, which are numerically stable for high-order including large number of segments and easily formulated for efficient computation. Moreover, exploiting the differential flatness of system, these polynomial trajectories encode the dynamics and constraints of the vehicle and decouple them from trajectory planning. The framework is fast enough to be performed in real time and results in solution which is close to time optimal. As control inputs are computed from the generated trajectory in each update, they are applicable to achieve closed-loop control similar to model predictive controller.
探讨了通用四旋翼飞行器在复杂未知环境中飞行时的最短时间轨迹生成和控制问题。该方法采用凸规划技术对多项式样条曲线进行优化,该方法在高阶(包括大量线段)条件下具有数值稳定性,且易于表述,便于高效计算。此外,利用系统的微分平面性,这些多项式轨迹编码了飞行器的动力学和约束,并将它们与轨迹规划解耦。该框架速度快,可以实时执行,求解结果接近于时间最优。由于控制输入是根据每次更新生成的轨迹计算的,因此适用于实现类似于模型预测控制器的闭环控制。
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引用次数: 10
Study of ISO 14229-1 and ISO 15765-3 and implementation in EMS ECU for EEPROM for UDS application 研究ISO 14229-1和ISO 15765-3在EMS ECU中用于UDS应用的EEPROM的实现
Pub Date : 2014-12-01 DOI: 10.1109/ICVES.2014.7063742
Mahesh Wajape, Nithin Bhaskar Elamana
The diagnostic tester is presented here to read out the contents of external EEPROM of an EMS ECU. The tester and the EMS ECU are built with Unified Diagnostic Service (UDS) on Controller Area Network (CAN) as per ISO 14229-1 and ISO 15765-3. When the tester requests the UDS on CAN bus, the ECU invokes the respective routines. The micro-controller of ECU uses Serial Peripheral Interface (SPI) protocol to read out the contents of EEPROM. The ECU stores the contents read from external EEPROM into a buffer and that will be transmitted on CAN bus as response to the tester request. In this paper, the work flow and the algorithms are provided as, how the tester requests the UDS commands on CAN bus and how the EMS ECU interprets this command to get the contents of EEPROM for the tester, as per ISO 14229-1 and ISO 15765-3.
诊断测试仪在这里提出了读取外部EEPROM的内容EMS ECU。测试仪和EMS ECU采用控制器局域网(CAN)上的统一诊断服务(UDS),按照ISO 14229-1和ISO 15765-3标准构建。当测试仪通过CAN总线请求UDS时,ECU调用对应的例程。ECU的微控制器采用串行外设接口(SPI)协议读出EEPROM的内容。ECU将从外部EEPROM读取的内容存储到缓冲区中,并将其作为对测试仪请求的响应在CAN总线上传输。本文按照ISO 14229-1和ISO 15765-3的标准,给出了测试设备如何请求CAN总线上的UDS命令以及EMS ECU如何对这些命令进行解释以获取测试设备EEPROM的内容的工作流程和算法。
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引用次数: 9
Universal adaptive headlight system 通用自适应大灯系统
Pub Date : 2014-12-01 DOI: 10.1109/ICVES.2014.7063715
Jyotiraman De
Today society strongly depends on transportability of both people and goods and is expected to grow further in the future. Along with this growth in number of vehicles on road, need of safety increases. By various analysis it was found that improper visual at sharp turns during night time may lead to accidents. Active safety systems can be designed to avoid these types of accidents and increase degree of safety in automobiles. In order to facilitate all the vehicles running on road with dynamic lighting system, this work aims to design and develop a cheap and effective Universal Automatic Headlight System. This system will try to control the beam angle using LED's based on Steering Wheel rotation. This will be done by a relay circuit that switches the LED bulbs glow from 10, 20 and 30 deg. LED bulbs will be used due to their low power consumption and high power output characteristic. This system is easily implemented on the bumper and will also take care of the glare problem faced by the opposite vehicle driver.
今天的社会在很大程度上依赖于人员和货物的可运输性,并有望在未来进一步增长。随着道路上车辆数量的增加,对安全的需求也在增加。通过各种分析发现,夜间急转弯时的视觉不正确可能导致交通事故。主动安全系统的设计可以避免这些类型的事故,提高汽车的安全程度。为了方便所有车辆在道路上行驶时使用动态照明系统,本工作旨在设计和开发一种廉价有效的通用自动前大灯系统。该系统将尝试使用基于方向盘旋转的LED来控制光束角度。这将通过继电器电路来完成,开关LED灯泡从10度,20度和30度发光。LED灯泡将被使用,因为它们的低功耗和高功率输出特性。这个系统很容易在保险杠上实现,也将照顾对面车辆司机面临的眩光问题。
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引用次数: 12
Multi-functional real time path programmable robot 多功能实时路径可编程机器人
Pub Date : 2014-12-01 DOI: 10.1109/ICVES.2014.7063709
Sandeep Konam, Mansoor Basha Patan, Renuka Lakshmi Dasari
Programmable robots have immense potential in transforming the way daily routines are performed. Interaction with our surroundings can be greatly enhanced by deploying these robots. In this paper, a dynamic way of programming a robot that traverses a fed input path is presented. A scaling mechanism that can map a large room onto the user's held hand device has been introduced. Paper also presents an intuitive way of measuring the speed and position of the robot using basic IR sensors. In a nutshell, robot is aware of its speed, position and is flexible to travel in any path specified by the user in real time. Applications are far flung and the robot could potentially aid the semi-autonomous navigation of vehicles. Results of the proposed methodology could lay foundation for building a robot with abilities rather than tasks. It could change the way the robots are conceived and utilized.
可编程机器人在改变日常工作方式方面具有巨大的潜力。通过部署这些机器人,我们与周围环境的互动可以大大增强。本文提出了一种动态编程的方法,使机器人能够在给定的输入路径上移动。一种可以将大房间映射到用户手持设备上的缩放机制已经被引入。本文还介绍了一种利用基本红外传感器直观测量机器人速度和位置的方法。简而言之,机器人能够实时感知自己的速度、位置,并灵活地沿着用户指定的任何路径移动。应用范围很广,机器人可能有助于车辆的半自动导航。所提出的方法的结果可以为制造具有能力而不是任务的机器人奠定基础。它可能会改变机器人的构思和使用方式。
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引用次数: 1
期刊
2014 IEEE International Conference on Vehicular Electronics and Safety
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